Add WordPress.org Live Preview support

Imagify Image Optimization currently doesn't support Live Previews on its WordPress.org plugin page.

I started working on a Live Preview Blueprint, but realized that Imagify requires a API Key to work.
While users could land on the Your Account page and setup a API key (try it in Playground), it would be a better user experience if there was a existing API Key they could use during the Live Preview.

Please let me know if I can help you get started with Playground or using Live Previews on WordPress.org,

Blueprint examples

Open Your Account

{
  "landingPage": "/wp-admin/admin.php?page=imagify",
  "steps": [
    {
      "step": "installPlugin",
      "pluginData": {
        "resource": "wordpress.org/plugins",
        "slug": "imagify"
      },
      "options": {
        "activate": true
      }
    }
  ]
}

Open General Settings with a working API Key

{
  "landingPage": "/wp-admin/admin.php?page=imagify",
  "steps": [
    {
      "step": "installPlugin",
      "pluginData": {
        "resource": "wordpress.org/plugins",
        "slug": "imagify"
      },
      "options": {
        "activate": true
      }
    },
    {
      "step": "defineWpConfigConsts",
      "consts": {
        "IMAGIFY_API_KEY": "<WORKING-API-KEY>"
      }
    }
  ]
}

Open General Settings by overriding the licence transient

This is probably the worst option. It would load your plugin, but every optimization attempt would file due to a missing API key.

{
  "landingPage": "/wp-admin/admin.php?page=imagify",
  "steps": [
    {
      "step": "installPlugin",
      "pluginData": {
        "resource": "wordpress.org/plugins",
        "slug": "imagify"
      },
      "options": {
        "activate": true
      }
    },
    {
      "step": "mkdir",
      "path": "/wordpress/wp-content/mu-plugins"
    },
    {
      "step": "writeFile",
      "path": "/wordpress/wp-content/mu-plugins/my-plugin-2.php",
      "data": "<?php add_filter( 'pre_transient_imagify_check_licence_1', '__return_true' );"
    }
  ]
}

Start by reading the WordPress.org Live Preview and Playground Blueprint documentation, then trace how Imagify currently obtains and validates its API key. The issue provides no file or test entry point; done means a Live Preview can open the plugin with a working, appropriately scoped API key without requiring visitor setup.